I have just bought Affinity Photos through the Mac App Store and installed it (it's version 1.4.1).
I have read other forum comments about this and I've tried the following:
- open Affinity in standard account
- open Affinity in admin account
- delete Affinity using Launchpad & reinstall Affinity from App Store
- opened Photos in both standard and admin account with Affinity running/not running
I'm running OS X 10.11.4.
Nothing I do lists the Affinity extensions. As you can see from the attached screenshot, the Photos extensions are empty and described as 'Not enabled'.
I've even bought and installed 'External Editors for Photos', but still I can't use Affinity or any extensions within Photos.
